Index: gcc/java/config-lang.in
===================================================================
--- gcc/java/config-lang.in (revision 166080)
+++ gcc/java/config-lang.in (working copy)
@@ -36,5 +36,7 @@ gtfiles="\$(srcdir)/java/java-tree.h \$(
target_libs=${libgcj_saved}
lang_dirs="fastjar"
-#build_by_default=no
lang_requires=c++
+
+# Do not build java by default.
+build_by_default=no
Index: gcc/doc/install.texi
===================================================================
--- gcc/doc/install.texi (revision 166080)
+++ gcc/doc/install.texi (working copy)
@@ -1320,7 +1309,7 @@ Currently, you can use any of the follow
Building the Ada compiler has special requirements, see below.
If you do not pass this flag, or specify the option @code{all}, then all
default languages available in the @file{gcc} sub-tree will be configured.
-Ada and Objective-C++ are not default languages; the rest are.
+Java, Ada and Objective-C++ are not default languages; the rest are.
Re-defining @code{LANGUAGES} when calling @samp{make} @strong{does not}
work anymore, as those language sub-directories might not have been
configured!
@@ -1763,7 +1741,9 @@ tools.
@subheading Java-Specific Options
-The following option applies to the build of the Java front end.
+The following option applies to the build of the Java front end. Note
+that the Java front end is not built by default; in order to build it,
+use the @option{--enable-languages} option described above.
@table @code
@item --disable-libgcj